Pump



June 12, 1928. 1,673,428

7 J. M. VAZQUEZ PUMP Original Fil ed Sept. 15, 1924 INVENTOR I 9 My;

ATTORNEY Patented June 12 1928.

PATENT OFFICE.

JOSE M. VAZQUEZ, .OF SUMMIT, iILLINOIS.

PUMP.

Application filed September 15, 1924, Serial No. 737,646. Renewed December 8, 1927.

This invention relates generally to water moving apparatus or pump, having more particular reference to a rotary device comprising a number of cylinders that dip successively into the water, the invention having for an object the provision of a novel and improved apparatus of this sort.

For further comprehension of the invention, and of the objects and advantages thereof, reference will be had to the following description and accompanying drawing, and to the appended claim in which the various novel features of the invention are more particularly set forth. c

Fig. 1 of the drawing is a face view of my improved apparatus.

Fig. 2 is a fragmentary side View thereof, with parts in section. I

Fig. 3 is a fragmentary transverse sectional view taken on the line 33 of Fig. 1.

As here embodied my improved apparatus comprises a number of cylinders 10 that are fixed on the arms 11 which radiate froma hub 12 mounted on a fixed stub shaft 13 that will be presently referred to, the hub and arms constituting a rotary frame supporting the cylinders. Fixed co-axially to the hub 12 is a pulley 14c to recelve a power belt. In each cylinder works a piston 15 connected by a piston rod 16 with a circular casing17 freely mounted on a cranked offset 18 from the shaft 13. A longitudinal passage 19 is formed in each piston rod, this passage communicating at one end with an aperture 20 in the piston and at its other end with another aperture 21 in a hollow wrist pin 22 to which the end of the piston rod 16 is connected, this wrist pin being fixed to the casing 17 eccentrically thereof and having the interior thereof in communication with the interior of the said casing. As will be understood there are a series of these wrist pins suitably spaced around the face of the casing 17. To prevent leakage between the end of the piston rod 16 and the aperture 20 in the piston, the end of said rod engages a surface curved concentric to the axis of the pivotal connection 24 be tween the piston and the rod 16.

The crank element 18 on the shaft 13 is formed with one or more port apertures 26 that register with the interior of the circular casing element 17,so as to form ports leading from the said casing into a longitudinal passage 27 that is formed in the shaft 13 and its offset 18, this passage being closed at one end as at 29 while the other end of which leads to a desired point. 13 may be mounted on any suitable standard or bearing element such as that indicated at 32, it being understood that the passage 27 the shaft may have connected thereto a pipe The shaft '60 sively in the water, which enters into the cylinders through the ports As the cylinders continue their rotary movement around the shaft,the pistons are caused to move radially outward in said cylinders, putting the water under pressure therein, and forcing the same out through the passages 19 and 27 to the desired point. It will be understood that one of the piston rods may be rigidly fixed to its wrist pin 22.

Having thus described my invention, what I clalm as new and desire to protect by Letters Patent of the United States is as follows In a pump, the combination with a plurality of hollow cylinders having each an opening in its wall, with means for rotating said cylinders about a common hollow axis, said means including a cranked hollow offset from said hollow axis, a circular casing mounted onsai'd olfset, piston rods connected to said circular casing, pistons on said rods working in said cylinders, wrist pins secured to'said casing having apertures, said rods being hollow and in communication with said apertures and with the hollow offset and axis.

In testimony whereof I have affixed my signature.

' JOSE M. VAZQUEZ. 

